CVE-2026-40923
Tekton Pipelines: VolumeMount path restriction bypass via missing filepath.Clean in /tekton/ check in github.com/tektoncd/pipeline
5.4
MEDIUM
CVSS 3.1
EPSS 0.22%
Description
Tekton Pipelines: VolumeMount path restriction bypass via missing filepath.Clean in /tekton/ check in github.com/tektoncd/pipeline
How to fix CVE-2026-40923
To remediate CVE-2026-40923, upgrade the affected package to a fixed version below.
- Go/github.com/tektoncd/pipeline—upgrade to 1.11.1 or later
- —upgrade to 1.0.2 or later
Is CVE-2026-40923 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- >= 1.10.0, < 1.11.1
- >= 1.0.0, < 1.0.2, >= 1.2.0, < 1.3.4, >= 1.4.0, < 1.6.2, >= 1.7.0, < 1.9.3, >= 1.10.0, < 1.11.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |